Recoiling gun.



RECOILING GUN.

APPLICATION F ILED MAR. 25, 1892- 2 SHEETS-SHEET 1.-

No. 789,806. PATENTBD MAY 16, 1 905.

K. HAUSSNER. v RBOOILING GUN.

APPLICATION FILED-MAR- 1903- 9 :mmu a z suns-552m z.

Patented DIay 16., 1905.

KONRAD IIAUSSNER, or EisENLicu, GER ANY.

RECOlLlNG GUN.

SPECIFICATION forming part of Letters Patent No. 789,806, dated may 16, 1905.

Appli ati n fil d March 25, 1902. Serial No. 99,958.

To all 1-71mm it may concern.-

I again eli'ects in the opposite way a uniform '5 Be it known that I, KOXRAI) lIAUssNuma l or almost uniform exertion or application of subjectof the King of Prussia, German Emperor, residing at Eisenach, Germany, have invented certain new and use ful Improvements 7 in or Relating to Recoiling Guns, of which the following is a specification.

In order to bring a gun or gun-support after the recoil forward into firing position in many cases. air or spring aecun'mlators are used. The springs are compressed during the recoil of the gun, and the power stored in the springs is used for moving the gun forward t gun u or gun-support.

into firing position. The apparatus used for carrying out this idea is as a rule of,such a construction that the springs are inserted into the gun-support under a'eertain compression which keeps the barrel in firing position even at its l'l tilil i elevation, thereby preventing iti'rolnslippinghack. Onfiringastillstronger compression of the spring is ellected, so that atthe end of the recoil a total ctnnprcssion is obtained which far exceeds the power'necessary to hriu the gun hack into firing position. Conse uently the gun or gun-support upon advancing tends to do so too violently and has to be checked by the so-called forc brake. However, these apparatuses have the disadvantage that it is necessary to store up extra power in the spring, which spring causes a consideralde and unnecessary increase of weight. To overcome these drawbacks, and particularly to reduce the weight of the spring to a minimum, which is especially decoil.

sirable in some forms of guns, thedevice forming the subject of the present invention is used in order to attain upon tlic'advance of the gun aconstant or almost coi-istantexertion of power by the spring or air accumulator. l.he invention is characterized by the r'ecoiling gun or gun-support being connected with the springaccumulator through a transmitting mechanism in such a manner that the transmitting power between the gun and the spring-power is gradually changed in the same proportion as the spring compression increases, so as to cause an almost uniform energy to act upon the gun-carrier throughout the time of its re- On advance of the gun the transmission power. To carry out the invention, various forms of construction are possible. For instance, helieoidal pulleys are used for rope or belttransmii' ion, while worm or spiral gearing is used in connection with ordinary toothwhcelcd gear transmission.

in the accompanying draw ings, Figures 1, 2, 3, and -t Si's' lfli' a practical means for carrying out the invention in connection with ropepulleys of various constructions.

A rope Figs. 1 and i2. is fixed at c to the This rope passes over a pulley 1/, arranged upon the forward end of the brake-cylinder 1, which, on firing remains stationary. From the pulley 11 the rope 71 passes round a helicoidal pulleyf', to the outer circumference or spiral of which it is fastened at r/. the pulleyf being keyed or otherwise suitably lived on a shaft I On the shaft l:- is rigidly fixed another ropwpullt i, Fig. 2, with screw-form grooves for ti. rope. To this pulley is attached one end or a rope I, while its other end is connected with a springplung'er againstwhich press the preliminary compressed springs m.

The operation of the apparatus is as follows: Upon the recoil of" the gun the barrel or carrier 1; draws the rope and consequently operates the helicoidal pulley by drawing the rope oil the latter. Thus as the spires increase in diameter the leverage is correspondingly and continuallyincreased until the drawing oli' of the rope from the pulley is finished at the end of the recoil. Meantime the rope k is wound onto the pulley i, thereby gradually compres ing the springs m The pitch of the coils of the pulleyf is so calculated that the radius of each winding or spire is in proportion to the corresponding compression of the spring- When after the recoil of the gun the spring expands, the contrary action takes place, and the radius of each successive spire of the pulley fdccreasing in the same proportion as the compression action of the spring decreases the gun'will be moved forward throughout the whole length of its return motion with an almost constant power.-

Another modification is shown in Figs.

and 6, which is adapted for toothed wheelgear. Upon the barrel ,1 is arranged a rack p, which on the recoil ot' the gun engages with and rotates the spin-wheel 1 On the shaft which carries the spur-wheel r is mounted a Wiring-curle which in its function is equal to a conical helicoidalspur-wheel and which can more l(')li} "itll(lillt1ll on its shaft, but rotates therewith, and therefore is rotated at tlu. same speed as the spur-wheel I The heli'coidal gear r engages with a spiral or cam gear a, the spiral of which is formed in one plane and which is connected with a spiral spring I. The operation and'etiect are the same as in the form described above.

Instead of creating a uniform drawing action for the return of the gun the constantlyaltering speed-gear can also be so arranged that upon the beginning of the return motion of the gun a slightly greater power is used than at the end of that motion, and vice versa. it is obvious that without in any way ati'ectin; the principal idea of the invention the same method can easily be used in connection with air-power acct-emula ors which replace the s', 1iiigpo\\'ei'accumulators.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Means for attaining a constant or almost constant exertion of ower for the return of a gun-barrel or its supportafter recoil in conlators consisting of independentlyvariable transmitting mechanism connecting the gun barrel or its support and the power-accumulator in such a manner that the power transmitted to effect the return of the gun varies in proportion with the compression of the spring or air.

2. Apparatus of the kind described characterized by the transmitting means between the barrel or gun supportand the accmnulator being in the form of a helicoidal rotary member cooperating with the gun-barrel for the purpose of obtaining a constant or almost constant exertion of power upon the-return "of the barrel or its support by gradually altering the amountof'power transmitted to the barrel from the accumulatorin proportion to the gradually-diminishing power of the compressor.

3. Means for attaining a constant or substantially constant exertion of power for the return of the gun-barrel or its support after recoil comprising power-transmittingmechanism connecting the gun barrel with the anism embodying a helicoidal' or spiral-shape toothed gearing.

in testimony whereof I havesigned my name to this specification in the presence of two sub scribing witnesses.

. KOXRAD 11A USSXER. \Vitnesses:

Lucas A Lin-am) lmzlswi-uut, NIKOLAS Koo/1t.

' nection with the use of spring or air accumu power-aecnmulator, said transmitting mech- 

